>> do it,, do it, let's do it again. >> the obama camp knows it is a struggle to repeat his 2008 triumph. now the president has to inspire his followers and win over the voters. >> our correspondent is at the convention center in charlotte. we asked him what the delegates expect from obama. >> 6000 delegates would like to hear a new message, why americans should vote for him. he needs to energize young and minority voters. republicans have and the president obama as anti- business, said he has to show he does understand private-sector and he has a plan to improve the sluggish economy. president obama has to convince wavering middle-class voters, especially women, that he cares for them, so the expectations are high. >> many democratic voters are disappointed with obama.